흡기매니폴내 액막연료의 분배특성

This paper is an experimental study that the fuel temperature and the engine operating condition have an effect on the distribution of fuel liquid film in the intake manifold and the experiment is carried out by means of 4cylinder engine motoring for the purpose of understanding the distribution trend of fuel liquid film flowing in the pipe inside wall supplied each cylinder of carburetor type gasoline engine. The pressure fluctuation difference between 1st and 3rd manifold is increased as the throttle valve opens widely. It showed the width of pressure wave tends to increase according as engine rpm is fast. and the difference of fuel liquid film formed in each manifold tends to decrease according as engine rpm is fast, temperature of supply fuel is high and throttle valve opening is wide. It could be confirmed visually that the non-uniform supply of mixture on each cylinder is because of fuel liquid film forming in the intake manifold.